How far away should the mature miRNA be from the head of the precursor ‘stem? Can the mature miRNA be a part of the head? Any references or pictures?

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Anurag Chaturvedi

Check out this page:

http://www.nature.com/reviews/focus/microrna/index.html

http://bib.oxfordjournals.org/content/early/2012/11/22/bib.bbs075.full

Basically it contains some reviews of miRNA.

Sung-Chou Li

You may refer to the bellowing reference:

Recognition and cleavage of primary microRNA precursors by the nuclear processing enzyme Drosha

http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=15565168